Book-shelf.



.YPATENTED MAY 30, 1905.

Y H. P. MACDONALD.

BOOK SHELF. APPLIOATION FILED OOT. 5,1904.

Wnweqa 2H1- UNIT D STATES Patented May 1905.

HARRY P. MACDONALD, OF JERSEY CITY, NEW ERsEY.

BOOK-SHELF- SPEGIFIGATION forming part of Letters Patent No. 791,155,dated May 30, 1905.

Original application filed April 29, 1904, Serial No.205,446. Dividedand this application filed October 5, 1904. Serial No. 227,185.

To all whom it may concern:

Be it 'known that I, HARRY P. MACDONALD, a citizen of the United States,and a resident of Jersey City, in the county of Hudson and State of NewJ ersey,'have invented a new and useful Improvement in Book-Shelves,ofwhich the following is a specification.

The object of this invention is to provide a book-shelf which will beextremely cheap to manufacture, in which the parts are easily assembled,and in which the arrangement of the several parts with respect to eachother is such that a very strong and light shelf structure may be formedwhich will be capable of successfully withstanding the weight of thebooks placed thereon.

This present application is a division of the application filed by me onthe 29th day of April, 1904, entitled Improvement in book shelves, itsserial number being 205,446.

In the accompanying drawings, Figure 1 is a partial top plan viewof theshelf. Fig. 2 is an 'end view. Fig. 3 is a transverse-section taken at adistance from one of the transverse bars. Fig. 4 is a transverse sectiontaken at one of the transverse bars. Fig. 5 is a side view. Fig. 6 is alongitudinal section. Fig. 7 is a partial top plan view of the blankfrom which the longitudinal bar is formed, and Fig. 8 is a partial topplan view of the blank from which the transverse bar is formed.

Each of the transverse bars is formed from a blank which is so shapedthat when the bar is completed it will have two vertical portions 1 2connected along their lower edges, the portion 1 having 'a plurality ofinwardly-extended flaps 3, spaced apart and projecting inwardly from theupper edge of the said portion, and the vertical portion 2 having aplurality of flaps 4, spaced apart and alternating with the flaps 3. Theblank from which one of the longitudinal bars is formed is so shapedthat when the bar is completed it will have a horizontal portion 5,flaps 6, projecting from its ends, downwardly-extended sides 7 8,upwardly-folded lips 9 10, and locking-flaps 11 12, projecting from theends of the sides 7 8.

These locking-flaps 11 12 are partially separated from the sides byslits 13 14 and from the flaps 6 by V-shaped recesses 15 16.

When the shelf is set up, the'flaps 3 extend inwardly beneath thehorizontal portions 5 of the longitudinal bars and the flaps 11 12 ofthe longitudinal bar are folded between the tongues4 and the verticalportion 1 of the transverse bar. The flaps 6 of the longitudinal barsare folded downwardly over the outer face of the transverse bar andthence upwardly a short distance on the inner face of the said bar.

The transverse bars may be provided with tongues 17, fitted to be foldedover the outer side of the outermost longitudinal bars and securedthereto by rivets 18 or other fastening devices.

What 1 claim is 1. A book-shelf comprising transverse bars andlongitudinal bars, each transverse bar having inner and outer verticalportions connected along their lower edges, the outer portion having aplurality of flaps projecting inwardly from its upper edge.

2. A book-shelf comprising transverse bars and longitudinal bars, eachtransverse bar having inner and outer vertical portions, the outerportion having a plurality of flaps projecting inwardly from its upperedge and the inner vertical portion havinga plurality of flapsalternating with the first-named flaps.

3. A book-shelf comprising transverse bars and longitudinal bars, thetransverse bars having inner and outer vertical portions, flapsprojecting inwardly from the upper edges of the outer portions into thelongitudinal bars and flaps projecting from the inner vertical portionsinto the spaces between the longitudinal bars.

4. A book-shelf comprising transverse bars and longitudinal bars, thetransverse bars having inner and outer vertical portions, flapsprojecting inwardly from the upper edges of the outer vertical portionsinto the longitudinal bars, flaps projecting from the inner verticalportions into the spaces between the said bars and tongues carried bythe transtions and the tongues of the inner vertical portions ofthetransversebars.

-6. Abook shelf'comprising-transverse. bars and longitudinal bars, thetransverse bars havinginner-and outer vertical portions, flapsprojecting inwardly from theouter portions and flapsprojecting upwardlyfrom the inner portions the longitudinal bars having horizontalportions, downwardly extended sides provided withflaps folded betweenthe-outer vertical :portions and-the flaps of the innervertical-portions of the transverse bars and flaps-projecting from thehorizontal portions folded downwardly along the outer sides of thetransverse bars.

7. A book-shelf comprising transverse bars and longitudinal bars, thetransverse bars having inner and outer vertical portions flapsprojecting inwardly from the outer portions and flaps projectingupwardly from the inner portions, the longitudinal bars havinghorizontal portions, downwardly extended sides provided with flapsfolded between the outer vertical portions and the flaps of the innervertical portions of the transverse bars and flapsprojecting from thehorizontal portions folded downwardly along tlieouter sides of thetransverse bars and upwardly on the inner sides thereof.

In testimony that I: claim? the foregoing as my invention I have signedmy name, in presence of twow1t-nesses,this 4th day of- October, 1904'.

HARRY P. MACDONALD. Witnesses:

FREDK. HAYNES, F. GEORGE BARRY.

